Wearable pairing protocol

This invention

This invention is a wireless pairing protocol built for medical wearables. It pairs a short-range radio-frequency (RF) handshake with rotating encryption keys — keys that refresh periodically — so a wearable and its companion device can keep authenticating each other while using very little power. In plain terms, it lets a body-worn health sensor and a phone or hub securely recognize each other and stay trusted over time. It belongs to the field of secure wireless communication for connected medical and health-monitoring devices.

Where it fits

Your idea sits where several active areas meet. By the technology data, it leans strongly into Wireless Networks (H04W) and Data Networking (H04L), alongside Healthcare IT (G16H). This result set runs about 23.8× the corpus baseline in Healthcare IT and 14.9× in Energy-Efficient ICT (Y02D) — a tight, well-developed corner where secure low-power health connectivity is an actively pursued direction. Filings appear steadily from 2001 onward, with busy stretches around 2007 and 2012–2017, showing sustained interest. Groups working nearby include Cardiac Pacemakers, Roche Diagnostics, Abbott Medical Optics, Cisco, and Motorola. The field also reaches into Signal Transmission (H04B), which these results touch a little less.

Closest related work

US-2013059541-A1 — Wireless Communication Authentication for Medical Monitoring Device (Abbott Diabetes Care · 92 citations · 1-member family)

This describes authenticated wireless pairing for a medical monitor: it detects an analyte sample, then starts a pairing procedure through a wireless protocol stack with an external device. It shows how Abbott approached the same core problem you're tackling — establishing trusted, authenticated communication between a body-worn sensor and an external device — and it's a useful look at how an analyte-monitoring context shapes the handshake.

US-10039496-B2 — Near field telemetry link for passing a shared secret to establish a secure RF communication link (Becton Dickinson · 6 citations · 30-member family)

This covers a continuous glucose monitoring system in which the meter and sensor exchange a secret key over a near-field link, then use that key to encrypt the RF channel that follows. It shows how Becton Dickinson used a short-range secret exchange to bootstrap secure RF — closely related to your handshake-then-encrypt approach, and a good window into the key-establishment side of the problem.

US-11751061-B2 — Secure wireless pairing using embedded out-of-band (OOB) key generation (Becton Dickinson · 0 citations · 14-member family, filed 2023, recent)

This recent filing implements Bluetooth Low Energy out-of-band pairing with embedded key generation, aimed at medical devices that lack input/output hardware for entering authentication information. It's a current take on low-power, low-interface secure pairing — directly adjacent to your goal of authenticating wearables without heavy user interaction.

US-7228182-B2 — Cryptographic authentication for telemetry with an implantable medical device (Cardiac Pacemakers · 237 citations · 11-member family)

This authenticates telemetered messages between an implantable device and an external programmer by encrypting them with a random number or time stamp plus a secret key. It shows how Cardiac Pacemakers handled time-varying, key-based authentication on constrained hardware — conceptually close to the rotating-keys element of your idea.

What you can do next

• Explore & build on it. Browse the related work above — fresh, differentiated ideas often come from combining or improving on existing approaches (a specific key-rotation schedule, a low-power handshake timing scheme, an energy-harvesting trigger, or a continuous re-authentication mechanism others haven't pinned down).
• If you'd like to protect it. Filing a provisional application (usually with a patent attorney) is a common first step. Most inventions can be protected in some form — what matters is how broad and defensible that protection is, which is where a patent attorney adds value (a very narrow claim may be granted but protect very little).
• If you'd like to make or sell it. The patents above point to who holds rights in this space; if your product would use a protected approach, licensing is a path worth exploring.